A Comparison of Maximal Oxygen Intake of Japanese Female Athletes Determined by Direct and Indirect Methods

DOI Web Site Web Site

Bibliographic Information

Other Title
  • 日本人女子大学生における最大酸素摂取量の実測値と推定値の比較
  • ニホンジン ジョシ ダイガクセイ ニ オケル サイダイ サンソ セッシュリョウ

Search this article

Abstract

Twelve female athletes aged between 19 and 22 years took sub maxiaml step-tests and maximal treadmill tests at about 20°C, 30°C, and 40°C of air temperature. The height of the bench was 30cm and the stepping rate was 15 and 27 steps per min. The maximal tests were performed at a constant running speed of 150m per min on a motor driven treadmill by a stepwise incremental loading technique. Namely, the subjects began running at a 0° grade which was subsequently increased by 2° every 2 min to their exhaustion.<br>The heart rate (HR) during submaximal work was significantly affected by air temperature (p<0.01), while oxygen intake (Vo2) during both submaximal and maximal works was not. Prediction of maximal oxygen intake (Vo2max) was made from HR and Vo2 at a submaximal work load by use of the nomograms of ASTRAND-RYHMING (1954), MARGARIA et al. (1965), and SATO, TSUDA, & YAMASAKI (1976). The results revealed that the observed Vo2max was overestimated in the prediction by the nomogram of SATO, TSUDA, & YAMASAKI (1976), and underestimated in the predictions by those of ASTRAND-RYHMING (1954) and MARGARIA et al. (1965). Comparing with the prediction by the nomograms of ASTRAND-RYHMING (1954) and MARGARIA et al.(1965), it was found in the case of SATO, TSUDA, & YAMASAKI (1976) that there was a trend to improve the accuracy in the prediction, especially in the hot environment. When highly trained athletes (group A) were omitted from the prediction by use of the nomograms for female, the above-mentioned tendency became more obvious.<br>Practical use of the nomograms, effects of the heat stress and physical training on prediction and others were discussed.

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top